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It is a complex, bacterial or viral infection that causes pneumonia in calves which can be fatal. It also affects many other species of feedlot animals like sheep and pigs, but is most prominent in calves. [2] The infection is usually a sum of three codependent factors: stress, an underlying viral infection, and a new bacterial infection. [3]
Streptococcus bovis is a group of strains of Gram-positive bacteria, originally described as a species, [5] [6] that in humans is associated with urinary tract infections, endocarditis, sepsis, [7] and colorectal cancer. [8] S. bovis is commonly found in the alimentary tract of cattle, sheep, and other ruminants, [9] and may cause ruminal acidosis.
Sheep and goats are both small ruminants with cosmopolitan distributions due to their being kept historically and in modern times as grazers both individually and in herds in return for their production of milk, wool, and meat. [1] As such, the diseases of these animals are of great economic importance to humans.
"But bacterial meningitis is a serious disease and parents should be vigilant if there is an outbreak at their child's school." Wellness, parenting, body image and more: Get to know the who behind ...
In bacterial meningitis, bacteria reach the meninges by one of two main routes: through the bloodstream (hematogenous spread) or through direct contact between the meninges and either the nasal cavity or the skin. In most cases, meningitis follows invasion of the bloodstream by organisms that live on mucosal surfaces such as the nasal cavity ...
Meningococcal meningitis is a form of bacterial meningitis. Meningitis is a disease caused by inflammation and irritation of the meninges , the membranes surrounding the brain and spinal cord. In meningococcal meningitis this is caused by the bacteria invading the cerebrospinal fluid and circulating through the central nervous system .
Disease is often introduced into a noninfected herd via healthy carrier animals and during outbreaks when sick animals shed more bacteria horizontal transmission by direct contact or aerosol is important. Flies can also spread bacteria between farms and wild boar in many countries are known to carry S. suis and may be an important reservoir. [3]
It is motile at temperatures of 22–29°C (72–84°F), but becomes nonmotile at normal human body temperature. [ 1 ] [ 2 ] Y. enterocolitica infection causes the disease yersiniosis , which is an animal-borne disease occurring in humans, as well as in a wide array of animals such as cattle, deer, pigs, and birds.